{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5c74652de6af960b7676d7cc8639a1ce4a4284b84f2447f587db4fd0b993ad62",
    "signature": "0x1e140c486db371d017f4bb88cfc762c1b6994dd7a02f26f8898f473b8d87a7830bd06554c721d8f07fece8f012a14287c6ead5e0318b971183db7b6976fb76931c",
    "signer": "0x1a14b86421cFD1157bB52D3B0799f0B24a926D3e",
    "userId": "693608897"
  }
}